eek some of the far east hornets are really nasty critters ,apicide is one thing and to be disapproved of in the strongest terms (ops or extreme measures are in order) but having them chase you is nasty and getting caught can be quite serious as well as agonisingly painful.

Ours tend to be fairly secretive and don't build such obvious nests as the Asian one seems to. We get a reasonable number in the woods, but we rarely know where their nests are, unless we see them coming out of a hole in a hollow tree.